Leung, Wai-Ching Revision in optics and refraction - London Arnold 1997 - vi, 138 p. : ill. ; 23 cm. Includes Index ISBN: 0340646136 (pbk) 9780340646137 Subjects--Topical Terms: Eye-DiseasesOphthalmology--Questions answers--MCQs--Eye--IIMC Dewey Class. No.: 617.7 / LEU